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xwayland: fix GL version check for GLES only devices 

We currently bail out early for GLES only devices, and call
epoxy_gl_version() too early for GLES only that will make GLES only
devices return NULL for glGetString(GL_RENDERER).

Let's also add a check to see if we need to recreate the context to
avoid pointless warnings for GLES only devices as suggested by
Olivier Fourdan <ofourdan@redhat.com>.

Fixes: a506b4ec - xwayland: make context current to check GL version
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren 2020-12-01 12:54:36 +02:00 committed by Olivier Fourdan
parent 5d73a8b59e
commit 65673b02ef
1 changed files with 14 additions and 12 deletions
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26
hw/xwayland/xwayland-glamor-gbm.c
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@ -973,30 +973,32 @@ xwl_glamor_gbm_init_egl(struct xwl_screen *xwl_screen)
xwl_screen->egl_display, NULL, EGL_NO_CONTEXT, NULL);
}
if (xwl_screen->egl_context == EGL_NO_CONTEXT) {
ErrorF("Failed to create EGL context with GL\n");
goto error;
}
if (!eglMakeCurrent(xwl_screen->egl_display,
if (xwl_screen->egl_context != EGL_NO_CONTEXT &&
!eglMakeCurrent(xwl_screen->egl_display,
EGL_NO_SURFACE, EGL_NO_SURFACE,
xwl_screen->egl_context)) {
ErrorF("Failed to make EGL context current with GL\n");
goto error;
}
/* glamor needs either big-GL 2.1 or GLES2 */
if (epoxy_gl_version() < 21) {
/* glamor needs either big-GL 2.1 or GLES2. Note that we can't rely only
* on calling epoxy_gl_version() here if eglBindAPI(EGL_OPENGL_API) above
* failed. Calling epoxy_gl_version() here makes GLES only devices fail
* below
*/
if (xwl_screen->egl_context == EGL_NO_CONTEXT || epoxy_gl_version() < 21) {
const EGLint gles_attribs[] = {
EGL_CONTEXT_CLIENT_VERSION,
2,
EGL_NONE,
};
/* Recreate the context with GLES2 instead */
eglMakeCurrent(xwl_screen->egl_display,EGL_NO_SURFACE,
EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglDestroyContext(xwl_screen->egl_display, xwl_screen->egl_context);
if (xwl_screen->egl_context != EGL_NO_CONTEXT) {
/* Recreate the context with GLES2 instead */
eglMakeCurrent(xwl_screen->egl_display,EGL_NO_SURFACE,
EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglDestroyContext(xwl_screen->egl_display, xwl_screen->egl_context);
}
eglBindAPI(EGL_OPENGL_ES_API);
xwl_screen->egl_context = eglCreateContext(xwl_screen->egl_display,